Log stake for trucks



1950 i F. G. BUSENIUS 2,518,974

LOG STAKE FOR TRUCKS Filed Oct. 16, 1948 2 Sheets-:Sheet 1 F2 rdinand G.Busefliu5 INVENTOR.

F. G. BUSENIUS LOG STAKE FOR TRUCKS Aug. 15, 1950 Filed Oct. '16, 1948 2 Sheets-Sheet 2 Fig.5.

Ferdinand G. Busenius I INV EN TOR.

Patented Aug. 15, 1950 Ferdinand.- Buseni'us, Graham; Wash, assignor oi cum-halt ta Alhenti S1. Busenius;, Tacoma,

Wash...

Applicationflctobertlfi, 1948; SerilzPNo. 54 ,975

4:.(Zlaimss (Cl. 280-.---145;)1

This. invention relates to the side stakes logging trucks, which are adapted t'o hol'd the logs from rolling off theti'uck whilebeingload ed and'transp'ort'ed.

IWy invention comprises; w stake: is: permainently mounted on the truck and which is release-Joly held in upright. position by means operated from-- the opposite side of the-"trucii.

imention 'fiZlTthEF comprises means for" holding said stake inoperating position; means ion looking said holding meansnroperativeposition and" means for" releasably locking said lockm meensin' operative position.

My invention further comprises: means for reducing the strain on W18St3kh01dfllfl180ht- 'nism by removing theconneetientherewith high:

QibOVe the stake pivot az-n'd t'oy curving the hold inelink;

The objects of my invention are tor= provide such it stake which issafe to'operate; positive action, and Which may lie-unlocked with"- ease and safety" in spite of the heavy pressure there on by the load of 'lbgs; to: provideasuchehmechanism Wl'iibh is simple to met-ks and" te -repair; effective? inuse; and abl'e to withstand the violent; usage i'ncident to loading; transporting and un loading: logs under extremelyrougli" conditions.

I attain these andotherobjeots by the devices; mechanisms and arrangements illustrated in the accompanying drawings; in which--= Fig; 1 iso sideelevatiorr, pa-r-tl y insection, show inga; bunk mounted across a; truck" and showing the stakes in operative position; Fig; 2' i's-simiiar view one-end thereof, showing-the loo'li' 100KB- means in unlocked-position Fig. '3 is. a cross section thereof: taken on the- 1ine 3 -1r in Fig; 1": Fig. 4 is asimilar view 'teskem om thelineainr Fig; I; Fig. 5- is; as section thereof; drawn to a; Tar-gen scale; showing: the-stake imdropped? posit tion and the locking means in released position; and. Fig. 6 is a plan: viewmfi thesend of the bunk; the stakefhet-ingr beem removed; andli'lfilstnating the sl'otsfln the; bunk web: azmik in: merplatiei.

Identical numenezlsx refa'enue neiier it'oithmsame illustrated seventh views.

Modem logging: openations: one: onsvemr largely by the use of? tnuckm underwent" rough conditions: on; 'tnaiFs; amt infinitive wads; It is necessary; th'enefore, tm have s'tekesitheneom capable of holding; the; 1mm ofi logmfirom.v spilling-r:

under ail]:conditions.-- These stokes: how.

evetpbe'l mounted! in; such ax that: the logs; can: be; unloaded: the opposite side? on the: tmel: in" opdenthen the: may be sate:

as they tumhle of! the truck. Other' inventorsliatveaprov-i-dedvarious formsof stakesend of their locking" means but; safer as I=em aware; none of these devices have produced a, locking means which cannot get jammed'by the heavy side-pressure ofth'eIogs againsttliestake, thus making itlvery difficult to unlbck the stakes when itis desired to unload the logs.

My improved logging stake is'provided" with apositive holding means whioh cannot get jammed and. yeir cannot' become released accidentally, and which is; itsel'fi' locked by manually operated means;v and which; when thus:un1ocked',.i's: automatically'releasedlby the side pressure-of thel'oad of logs acting; on the st'ake-z Referring; now, to thedrawing it will beseen thatthevtruckid'eck or frame H): is provided-with. allog bunk lil's secured: thereto. This hunk I I- comprises an I -bemn (Figs. 3; 4 laid? on edge and extending: across, the truck? to: a: point beyond the truck wheels [22 stake I31 is: mounted at each end ofthebunkc. Usually twobunks are provided on aa-loggi'n truck; floutxmoremay: be used if de' Sil'fid;

It: is to; he; understood that: the description of; one stake, itsoperationand control; applies; trr-alltthestakesmountedtomthetruclc. The'steke L3 provided with a;= bifurcated lowerend; the: tines; M'of which span the end of the bunk" I1 and; which are pivotazlly secured" thereto. Slots: I155 are provided at the end? of the tines Il and? ease: adapted to receive the concentric pivot pins: Hilwhich. are; weided'to the outsi'd'es of the bunk: Isl; A; emovable bolt. lel closes the end of each S1Dt'1f5 tO hold the stake lii onits pivots, thus: pmovidinw for. the. demounting of the stake fen or otherwise.

A holding: linlnifl: is: secured: to; the stake I 3? between; theuppeit' portions of the times ME by means of: ampivotbolt 19 'llhietie-link l8? extends: dnnmwasdzandirrward: on a; cuilvediline; as shown; to the bunk and is pivotally attached to: the fol lowing described; look. mechanism, by meansof which: the stake? Iii is=fimnly helw inupright posi tion untiliit isreleased andi then theesteke fall's outward. om itsspivot pinsa I58 into the position- A covenplate 2U? is we1dedtothebunk inside of" the upper flanges of the Isbe'em and extends: across the beam substantially one, level with the upper" edge; of bunk; thus forming: an: openended box. of thecend-iofrthetbunk. This plate 2U isiprovidedz with; an OPEHPBnd/Ed' slot 21 (Fig; 6 in: which the said holding on tie link F8 freely from; the-danger: ofzbeinet; hitzbn the kiss; 55 passesavwhen. the smite is: failing; The web.-

the I-beam H is also provided with a similar open-ended slot 23 which also allows the said tie link to pass freely as the stake falls.

The inner end of the tie link I8 is pivotally se cured to a lock plate 24 which lies fiat on top of the web 22 of the bunk II, when in its looking position but which is too broad to pass through the slots 2| or 23 when the stake is released. The knuckle 25, by which the inner end of the tie link is is pivotally joined to the lock plate 24, extends upward from said lock plateto a point close to but not touching the under side of the cover plate 20, thus preventing the upward component of the force in the link l8 from lifting the plate 24 from off the web 22, so that the motion of the outer end of the lock plate 24 is only horizontal in the box formed-by the bunk H and its cover plate 20.

The lock plate 24 is provided with a broad lug or tooth '26 secured to its lower surface, inward from the knuckle, and adapted to enter and engage the end of a crosswise slot 21 made in the web 22. The shape of the lug 26 is such as to loosely fit in the said slot 21 s that so long as the plate 24 lies flat on the Webb 22, the plate cannot move longitudinally and therefore the stake i3 is held upright by the link l8. The width of the lug 26 is greater than the width of the slot 23 in the web '22.

This lock plate 24 is locked in this locking position by means of a movable lug 28, mounted on a rotatable pivot 29 passing through the upper flanges of the bunk H, directly over the said slot21. The length of the lug 28 is such as to engage the top of the plate 24 when the lug 26 thereof lies in the slot 21, so as to absolutely prevent the inward end of the plate 24 from rising off the web, and thus permit the said lug 26 from leaving the slot 21. The said pivot 29 is provided with a crank 30 on the outer side of the bunk, said crank being adapted to turn the pivot 29 with its lug 28, So as to bring said lug into said locking position and to firmly hold it there, or to remove it therefrom t release the plate and its lug from their above-described locking position, to release the said stake l3.

The crank 30 is controlled in its movement by means of a control bar 3 I which is pivoted thereto and which extends across the truck, beside the bunk l I, and which passes through a hole 32 in a flange 33, secured to and extending laterally from the said bunk. A notch 34 is made in the lower side of the bar 3!, said notch being positioned so as to permit the bar to fall over the flange 33 when the lock lug 2B is in engagement with the top of the lock plate 24, thus firmly holding the said lug 28 from movement, in either direction, away from such lockin'gposition.

- The control bar 3| is held in such locking position by any desired means, such. as the pivoted eccentric plate 35, or by means of a toggle bolt or otherwise.

,My improved log truck stake is operated in the following manner: Assuming that the parts are in the released position as shown in Fig. 5. In this position the plate 24 and its tooth. 26 are supported on the upper side of the web 22 because the tooth is wider than the width of the slot 23 through which the tie link l8 has passed to connect with the released stake I3. r

The stake 13 may now be turned upward on its pivot pins l6; causing the plate 24 to slide onthe web 22. Theplate 24'cannot rise out of the boxed space between the web 22 and the cover plate 20. Whenthe stake l3has reached 4 its upright position the tie link l8 will engage the cover plate 2!] and the tooth 26 will fall into the slot 21.

When this position is reached the control bar 3! is moved so that the notch 36 engages the flange 33, thus bringing the lock lug 28 down into engagement with the upper side of the lock plate 24. Then the bar 3| is locked in this position by the eccentric plate 35, or otherwise.- The logs may then be loaded on the truck.

When it is desired to dump the load of logs from the truck, the reverse action is followed. The control bar is first released, raised to disengage the notch 3d from the flange 33, and pushed or pulled to move the lock lug 28 away from the plate 24. The pressure of the logs on the side of the stake 13 will now cause the tooth 26 to leave the slot 21 by raising the inner end of the plate 24, thus entirely freeing the stake from restraint of the holding link I8. It will, therefore, immediately turnldownward on its pivot pins l5 and permit the logs to fall, the link l8 moving through the slots 2! and 23.

It will be observed that the tie link I8 is slightly curved in shape in order to avoid contact with the logs as much as possible and yet to reach up as high as practical on the stake so as to increase the leverage of the holding link on the stake and thus reduce the stress therein. It will also be observed that the cover plate effectively protects the locking mechanism from contact with the logs and keeps bark chips and dirt from interfering with the operation of the locking parts.

It is, of course, to be understood that changes may be made in the details of my improved log stake for trucks without departing from the spirit of my invention as outlined in the appended claims.

Although I have described my invention as applied to log stakes for trucks, it is obvious that the stakes may be used to hold other objects in place, and may be applied to the rear end of the truck, if desired, and also that they may be used on other vehicles than trucks, such as railroad cars, with only-slight modification.

Having described my invention, what I claim and desire to secure by Letters Patent, is:

l. Inia log stake for trucks, the combination of a bunk extending across the truck, and having alhorizontal web; a cover plate secured to said bunk and positioned over said web; concentric pivot pins extending out from the sides of said bunk; a bifurcatedstake mounted on said pivot pins; a lock,.plate adapted to slide on the Web-of the bunk: and under said cover plate; a holding link pivotally'secured to said lock plate and tosaid stakeadjacent the point of bifurcation; and a lock lug mounted above said lock plate and adapted to removably hold said lock plate from sliding on said web.

' 2. In a log stake for trucks, the combination of a bunk extending across the truck and comprising an I-beam laid on the edges of its flanges; a cover plate secured within'the top edges of its flangesadjacent the end of the bunk; concentric pivot pins extending out from the sides of the bunk; a bifurcated stake mounted on said pivot pins; a lock plate adapted to slide on the webof the bunk; a central holding link pivotally secured to said lock plate and to said stake adjacent the pointer bifurcation, and engaging said cover plate to prevent the stake from falland-said web, and adapted to. permit said holdpositioned inward from said pivot pins; a lug on the inner end of the under side of said plate and adapted to enter said slot to hold said lock plate from movement on said bunk; means to releasably hold said lug in said slot; a tie link pivotally secured to said stake above said pivot pins; and a knuckle joining said tie link with the outer end of said lock plate and substantially engaging the upper side of said bunk box, where- 20 by the outer end of said lock plate is prevented from rising in said bunk box.

6 o 4. In a log stake for trucks as set forth in claim 3 wherein said means to releasably hold said lug in said slot comprises a bar mounted on said bunk and extending laterally across said truck; a crank secured to the end of said bar and pivoted to said bunk over said slot; a lug on the pivot of said crank and adapted to be swung thereby into or out of contact with the upper side of said lock plate, to hold the inner end of said plate down on the base of said bunk or to release it from such restrained position.

FERDINAND G. BUSENIUS.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,018,818 Gaskill Feb. 2'7, 1912 1,260,179 Fry Mar. 19, 1918 1,557,195 Clapp Oct. 13, 1925 

